Oh there are so many haha. Sometimes little mistakes ended up being funny. One time before Went got truly-promoted I accidentally promoted him to admin for a few minutes. He was like "um Audy I'm reading the admin forums right now..." haha. This was before I was a staff admin too, so he was browsing forums I wasn't even supposed to see. Oops.
Then there are small pranks, like when I put a floating Wario sprite on every page of PC in a random location, and clicking it took you to a He-Man remix video of What's Up by 4 Non Blondes. Steve sent me a message and was like "omg did we get hacked what's on the forums" hahah.
I dunno. I don't think I have any single biggest contribution, but a lot of little things over the years have built up and my fingerprints are all over the community. A lot of the ideas and changes I've pushed for in HQ I'm proud of, but the more visible things are obviously the coding I do. Like I forget how much I've changed the software here until I browse other vBulletin forums and I go to do something and I'm like "wait what, that wasn't a default feature??" So yeah. I'm proud of those contributions. They'll probably be my legacy once I'm gone. "gdi that stupid notification glitch that Audy never fixed is STILL HAPPENING AKSDJFasdkjflkasjdf"